Jørgen Peder Steffensen of the Niels Bohr Institute showing the exact point in the ice cap where the last Ice Age ended - 11,711 years ago.Posted on 12/18/2008 11:35:27 AM PST by BGHater
The result of a Danish ice drilling project has become the international standard for the termination of the last glacial period. It ended precisely 11,711 years ago.
A Danish ice drilling project has conclusively ended the discussion on the exact date of the end of the last ice age.
The extensive scientific study shows that it was precisely 11,711 years ago - and not the indeterminate figure of ‘some’ 11,000 years ago – that the ice withdrew, allowing humans and animals free reign.
According to the Niels Bohr Institute (NBI) in Copenhagen, the very precise dating of the end of the last Ice Age has made Denmark the owner of the “Greenwich Mean Time” of the end of the last glacial period and beginning of the present climate – the so-called International Standard Reference.
Kilometres of ice It took several thousand years to warm up the earth and melt the kilometre thick ice caps that covered large parts of the northern hemisphere during the last glacial period and as a result the transition from Ice Age to the current period has lacked a clearly defined point in time.
The answer has now been found in the NordGrip drilling project in Greenland.
“Our new, extremely detailed data from the examination of the ice cores shows that in the transition from the ice age to our current warm, interglacial period the climate shift is so sudden that it is as if a button was pressed”, explains ice core researcher Jørgen Peder Steffensen, Centre for Ice and Climate at NBI at the University of Copenhagen.
Ice core reference When ice cores, that are formed by annual snowfall that is compressed into ice, are drilled out and analysed, the three kilometre ice cap in Greenland has acted like a filing cabinet of the climate detail of past geological periods.
“It is the first time an ice core has been used as an international standard reference for a geological period and it is a great recognition of our extremely detailed scientific data”, Jørgen Peder Steffensen said.
Jørgen Peder Steffensen of the Niels Bohr Institute showing the exact point in the ice cap where the last Ice Age ended - 11,711 years ago.
If you look VERY closely at the black lines you’ll see it says Dec. 30, 2:41 a.m. GMT.
2008 AD minus 11,711 years means the last Ice Age ended in 9703 BC.
Just about when agriculture began in the Middle East. Hmmmm....
Very good! Actually, the end of the last glacial period is the start of the Younger Dryas, which was an abrupt period of cooling that followed the gradual warming. The Younger Dryas initiation event was very likely the release of a flood of glacial meltwater into the North Atlantic, where the low-salinity water stopped the deep water formation process "cold". This meant that the cold which was normally transferred into the ocean stayed in the atmosphere. The Younger Dryas lasted about 1,000 years, and it terminated abruptly too, when the deep water formation restarted. Temperatures rose more than 5 C in a decade.
The Younger Dryas is one of the great examples of abrupt climate change triggers.
Two examples of abrupt climate change
Sorry about that. Always check references before posting, I keep telling myself...
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“No word on the exact day or month.”
I have always wondered how Bishop Ussher was able to calculate the earth was created Oct. 23, 4004 BC. I guess they had more precise guesses then.
See blam’s Comment 4, which posits the idea that a large boloid event in the north, threw us into a thousand year regression back into the Ice Age. If, in fact the Ice Age really started to end about 18 to 20 thousand years ago, then we are about due for another one. However, I wonder if some extraterrestrial periodic catastrophe has been the start of each of the great Ice Ages of the past? If so, our current troubles, are very little ones. Nothing like a bit of perspective to cheer one up these days.
A.M. or P.M.?
See blam's Comment 4, which posits the idea that a large boloid event in the north, threw us into a thousand year regression back into the Ice Age. If, in fact the Ice Age really started to end about 18 to 20 thousand years ago, then we are about due for another one. However, I wonder if some extraterrestrial periodic catastrophe has been the start of each of the great Ice Ages of the past? If so, our current troubles, are very little ones. Nothing like a bit of perspective to cheer one up these days.If there's a bolide involved, there's nothing to worry about, e.g., there is no "cycle" of ice ages. Of course, if another bolide happens along... :')
And just about the age of the supposed underwater city in the gulf of Cambray in India...
LOL
Danish Arctic Reasearch can be lonely, you must make the most of your dates
LOL
Danish Arctic Research can be lonely, you must make the most of your dates
I would surmise that bolides do happen along in cycles. Could not a comet be a bolide, or a stray meteor from, say, a cyclical Geminid shower?
Perhaps a “swarm” of meteors is now approaching earth for a regular 11,720 yearly visit to our solar system.
We seem to be experiencing that lately. :’) In recent years the concensus has become that annual meteor showers (the Perseids, Geminids, etc) are chunks of crap moving along the former trajectory of one or the other periodic comet. When the chunks are larger, then they show up in the news. Today I stumbled across (again) a story from October regarding a 3 meter rock that was discovered the day before it crashed through atmosphere and into the Sudan. A few days later (or maybe it was earlier) a big one came down over Oklahoma.
Insert obligatory SUV Joke.
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